User manual

Page 23
AAV
Plate Heat Exchanger
AAV
SCB
Boiler
SCB
Boiler
Please note the
compulsory use
of AAV’s in the
primary loop
Please note the compulsory use
of AAV’s in the primary loop
AAV
Size the primary loop circuit pump to cater for the total mass flow of all the Boilers at 20c delta
T The pump head is sized to overcome the plate resistance
Size the Common flow & return headers using the information on page 19 System side pumps
and hydraulic detail not shown.
System side pumps are sized to overcome the Plate Heat exchanger and any system side re-
sistance Any difficulty with existing system pump’s can be overcome by using a pumped Low
Loss Header. At the system side and existing system pumps.
The system side can be open vented with normal precautions (we recommend sealing the system
to prevent any possibility of pump over) or sealed using the relevant equipment.
Please check the quotation for items that will be supplied. Strebel can supply all the
items shown at extra cost if applicable. Note NRV’s should be used supplied by others.